Or have you wondered what makes one deep cycle battery greater than another? If so, this article will answer these questions and provide you specific things to check on before buying your new battery (to make certain you get the most bang for the buck)!
When picking a battery (or batteries) to your solar panel system, there are three categories of batteries that work best. We’ll do this in two parts:
Part 1) Instantly compare the three chief kinds of solar batteries (lead acid, saltwater, and lithium). And,
Part 2) Compare the components of batteries, such as: depth of discharge, capacity and power, efficiency, battery life, and maker.
By the conclusion of this article you will know exactly how to pick the ideal battery for your solar panel system!
So let’s begin…
Part 1) The Three Best Types Of Batteries For Solar Panel Systems: The best type of battery for your solar panel system will be dependent on what you’re looking for. So the first decision to make is the sort of battery that will fit your system.
They’re also one of the longest-used and most reliable batteries in existence. When compared with the other batteries we’ll discuss in this report; they are the cheapest option but you exchange price for some battery life and depth of discharge. But for homeowners needing a great deal of storage for a lesser cost, or if you are just making the move to a solar panel system, lead acid batteries might be an excellent option. They’re the sort of battery we use in most of the battery banks within our solar panel systems.
Saltwater batteries are more expensive than lead acid batteries, but also have a better lifespan. Unlike lead acid batteries, saltwater batteries are essentially brand new to the industry and stay both somewhat untested and more difficult to come across. Of the three kinds of batteries, saltwater has the greatest depth of discharge, which means you’ll get the most output per fee before needing to recharge.
Lithium batteries are the most expensive and the longest lasting of the three types of solar batteries. Their depth of discharge is less than that of a saltwater battery, but more than that of a lead acid battery. Comparing all three options, the lithium ion battery may be the highest rated, but also the most expensive. A good example of a lithium ion battery is the Tesla Powerwall.
Part 2) Compare the components of batteries. Once you’ve picked the best battery type for your solar panel or off-grid system (that meets your system’s needs), there are components to research to find the ideal battery to your system.
Cost is probably one of the more obvious elements. But the old saying,”you get what you pay for” holds true when buying batteries as well. Sometimes though, certain batteries could be overkill for your system so the most expensive battery may not be the best choice always.
Battery Life and Warranty
For most systems, a battery will cycle daily, meaning it is going to drain and charge regularly. With each cycle, the battery’s ability to maintain the same charge lessens slightly. So one component to consider is the guarantee on the battery that guarantees a specific number of cycles of useful life. But keep in mind that if you use the maintenance and reconditioning methods we teach you at the EZ Battery Reconditioning program, you can extend the life of your batteries.
Length of Discharge
Depth of discharge is how much you can drain the battery before needing to recharge the battery without damaging its life. Certain solar batteries can be depleted further than others, allowing for more use between charging. Basically, a battery with a 90% depth of discharge per cycle will provide more battery power per charge than a battery with less.
Ability and Power
The more capacity a battery has, the more power it can save. Power is how much energy a battery can provide at a given moment. A battery with a high capacity and higher power can run a massive system for several hours; a battery with low capacity and higher power can operate a large system but only for a brief time.
Efficiency is the amount of energy used compared to the amount of energy it took to save energy. Batteries require power to charge and efficacy compares the energy taken to control a battery with the amount of energy which the charged battery generates. The higher the efficiency, the more cost-effective the battery.
This may not be a component most would consider, but it’s something to focus on. As with other technology, there are both trusted brands and startup brands. A trusted brand comes with known defects and advantages; a startup brand can perhaps have better technology, but could also have unknown technological issues. Depending upon your system demands, you may decide to go with a well-reviewed company or one that is brand new to the market.